1,721,165 research outputs found
Russell, Helen (Death, 1899-07-02)
No full textAddress: 803 Carr St.Age at death: 10m. 10da.Pg.76/1899/59/F W S/City/Dr. Corboy/F. & W. Siefke/Spring GroveOriginal record filed in drawer labeled 'Runk-Ryan'
Novel thermally cleavable safety-catch linkers for combinatorial chemistry
No full textTwo novel thermally cleavable safety-catch linkers were developed for solid phase organic synthesis, based on the sulfoxide/selenoxide pericyclic elimination reaction. The linkers were evaluated using various substrates; both peptides and small organic molecules.Activation of the safety-catch was achieved via selective oxidation of the sulfide/selenide to the corresponding sulfoxide/selenoxide. A novel oxidation method for the solid phase oxidation of sulfides to sulfoxides was developed whereby hydrogen peroxide was used in hexafluoroisopropanol (HFIP) preventing undesirable over-oxidation to the sulfone.Cleavage of the sulfoxide linker was only possible using high temperature (100°C) and an activated substrate. In contrast, the selenoxide elimination occurred at room temperature, hence allowing milder cleavage conditions. The selenoxide linker was synthesised with a number of substrates, both peptides and small organic molecules. Cleavage was successful at room temperature, although further optimisation is required.</p
Russell, Helen M. (Death, 1895-02-16)
No full textAddress: 265 Everett St.Age at death: 43 yrs.Pg.18/342/1895/F W S/New York/Dr. S. R. Geiser/J. F. Wiltsee/Niagara Falls N. Y.Original record filed in drawer labeled 'Runk-Ryan'
Newspaper clipping- Jesse Russell, Helen (Anderson) Beveridge, Velma (Whiteneck) Collins, Marion (Johnson) Browne, Helen (Johnson) Borjeston, Winnifred (Peterson) Bell
No full textNewspaper clipping- Jesse Russell, Helen (Anderson) Beveridge, Velma (Whiteneck) Collins, Marion (Johnson) Browne, Helen (Johnson) Borjeston, Winnifred (Peterson) Bellhttps://digitalmaine.com/stockholm_images/1602/thumbnail.jp
Newspaper clipping- Jesse Russell, Helen (Anderson) Beveridge, Velma (Whiteneck) Collins, Marion (Johnson) Browne, Helen (Johnson) Borjeston, Winnifred (Peterson) Bell
No full textNewspaper clipping- Jesse Russell, Helen (Anderson) Beveridge, Velma (Whiteneck) Collins, Marion (Johnson) Browne, Helen (Johnson) Borjeston, Winnifred (Peterson) Bellhttps://digitalmaine.com/stockholm_images/1602/thumbnail.jp
The Experience of Discrimination in Ireland: Evidence from Self‐Report Data
Full text linkAbstract included in text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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